1460764584-d04019b7-e23e-4416-b97c-6abff023d51d

1. A sliding apparatus to be connected between a rack and a server module, the sliding apparatus comprising:
a sliding member to be fixed to a first end of the server module, wherein the sliding member comprises a first holding portion and a second holding portion each defining a mounting hole;
an elongated and sleeve shaped first slide rail slidably retained in the mounting holes of the first holding portion and the second holding portion, wherein a first end of the first slide rail is fixed to the rack;
an elongated and pole shaped second slide rail, wherein a first end of the second slide rail is slidably received in the first slide rail through a second end of the first slide rail, a second end of the second slide rail is fixed to a second end of the server module; and
a latch member fixed to the sliding member and lockable to the rack.
2. The sliding apparatus of claim 1, wherein a screw nut is screwed to the second end of the first slide rail to block the second slide rail, to prevent the second slide rail from being released from the first slide rail.
3. The sliding apparatus of claim 1, wherein the sliding member comprises a first side surface and a second side surface opposite to the first side surface, the first holding portion and the second holding portion protrude from the first side surface, the second side surface is fixed to the server module, the latch member is fixed to the second side surface.
4. The sliding apparatus of claim 1, wherein a first rod protrudes on the first holding portion for engaging in the rack.
5. The sliding apparatus of claim 1, wherein a second post protrudes on the second holding portion for engaging in the rack.
6. The sliding apparatus of claim 1, wherein the latch member comprises an operation portion, and a wedge protruding on the latch member adjacent to the operation portion, the sliding member defines a through hole, the wedge extends through the through hole to abut against the rack.
7. An electronic device comprising:
a rack;
a server module comprising two side surfaces; and
two sliding apparatus each arranged between a corresponding one of the two side surfaces and the rack; wherein each sliding apparatus comprises:
a sliding member fixed to a first end of a corresponding one of the two side surfaces of the server module, wherein the sliding member comprise a first holding portion and a second holding portion each defining a mounting hole;
an elongated and sleeve shaped first slide rail slidably retained in the mounting holes of the first holding portion and the second holding portion, wherein a first end of the first slide rail is fixed to the rack;
an elongated and pole shaped second slide rail, wherein a first end of the second slide rail is slidably received in the first slide rail through a second end of the first slide rail, a second end of the second slide rail is fixed to a second end of the side surface of the server module; and
a latch member fixed to the sliding member and lockable to the rack.
8. The electronic device of claim 7, wherein the rack comprises a base, two first posts extending up from a first end of the base, and two second posts extending up from a second end of the base, the first and second posts sandwich the server module, the first and second posts each define a plurality of mounting holes, the first end of the first slide rail is fixed to one of the first mounting holes of the corresponding first post, the second end of the second slide rail extends through one of the mounting holes of the corresponding second post to be fixed to the server module.
9. The electronic device of claim 8, wherein a first rod protrudes on the first holding portion for engaging in one of the mounting holes of the second post, a second rod protrudes on the second holding portion for engaging in one of the mounting holes of the first post.
10. The electronic device of claim 7, wherein a screw nut is screwed to the second end of the first slide rail to block the second slide rail, to prevent the second slide rail from being released from the first slide rail.
11. The electronic device of claim 7, wherein the sliding member comprises a first side surface and a second side surface opposite to the first side surface, the first holding portion and the second holding portion protrude on the first side surface, the second side surface is fixed to the server module, the latch member is fixed to the second side surface.
12. The electronic device of claim 7, wherein a mounting piece is fixed to the second end of each side surface of the server module, the mounting piece defines a mounting slot, the second end of the second slide rail is detachably engaged in the mounting slot.
13. The electronic device of claim 12, wherein a thumbscrew is movably attached to the mounting piece for screwing in the rack.
14. The electronic device of claim 7, further comprising a locking apparatus attached to the first end of the server module, wherein the locking apparatus is detachably attached to the sliding member.
15. The electronic device of claim 14, wherein the locking apparatus comprises a fixing member fixed to the server module, a releasing member pivotably attached to the fixing member, and a resilient member arranged between the releasing member and the fixing member.
16. The electronic device of claim 15, wherein a pin protrudes on the sliding member, a locking slot is defined in the fixing member, the pin pushes the releasing member to slide in the locking slot, the releasing member is biased by the resilient member to lock the pin in the locking slot.
17. The sliding apparatus of claim 11, wherein the latch member comprises an operation portion, and a wedge protruding on the latch member adjacent to the operation portion, the sliding member defines a through hole, the wedge extends through the through hole to abut against the rack

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. Valves for steam engine with rotating piston and drive thereof characterized in that cylindrical rotary body (3) with the cavity (31) is fitted in their casing (2), concentrically mounted on the back shaft (4), which is fitted in at least one back bearing (41) fitted in the casing (2), while the rotary body (3) incorporates at least one body opening (32) along the circumference thereof and the casing (2) incorporates at least one pipe opening (24) and at least one engine opening (25) for ensuring pass-over of propelling medium between the pipe (6) and the engine and there is the valve wheel (8) connected to the drive gear (9) mounted on the back shaft (4) for ensuring drive of the valve (1).
2. Valves according to the claim 1, characterized in that the cavity (31) of their rotary body (3) is opened from the front side and the front flange (22) of the casing (2) is inserted by its inner part and fits into inside of the cavity (31) and at least one pipe opening (24) is located on the inner circumference part of the front flange (22) and the pipe (6) is connected to the outside part of the front flange (22) and at least one engine opening (25) is located on the box (21) of the casing (2).
3. Valves according to the claim 1, characterized in that the cavity (31) of their rotary body (3) is closed from the front side and the rotary body (3) is concentrically mounted from the front side on the front shaft (5), which is fitted in at least one front bearing (51) fitted in closed front flange (22) of the casing (2) and the pipe opening (24) and at least one engine opening (25) are located on the box (21) of the casing (2), while the pipe (6) is attached to the pipe opening (24).
4. Valves according to any of claims 1 to 3, characterized in that their back bearing (41) is secured by the bearing encapsulation (7) by means of the sealing flange (71) mounted on the back shaft (4) and the filling (72) mounted on the back flange (23) of the casing (2), while there is the valve wheel (8) mounted on the sealing flange (71) from the other side and secured by the securing element (81) and the nut (82), which are mounted on the back shaft (4) and the bearing encapsulation (7) is covered by its sealing cover (73) mounted on the back flange (23) and fitting tightly to the valve wheel (8).
5. Valves according to any of claims 1 to 4, characterized in that their drive gear (9) consists of at least one circulating drive element (93) connected to the drive wheel (91), the valve wheels (8), at least one tensioner (95) and at least one vibration damper (94).
6. Valves according to the claim 5, characterized in that the circulating drive element (93) is a chain or a belt.
7. Valves according to claims 5 and 6, characterized in that their drive gear (9) consists of four valve wheels (8) placed in vertexes of an orthogon and the drive wheel (91) is placed in the middle among them, while the circulating drive element (93) runs from the drive wheel (91) through at least one tensioner (95) to the first valve wheel (8), then along circumference of an orthogon to another three valve wheels (8) and then back to the drive wheel (91), while it runs through at least one vibration damper (94).
8. Valves according to claims 5 and 6, characterized in that their drive gear (9) consists of four valve wheels (8) placed in vertexes of an orthogon and the drive wheel (91) located in the middle among them, while first circulating drive element (93) runs from the drive wheel (91) through the first tensioner (95) to the first valve wheel (8), then to the second valve wheel (8) and back to the drive wheel (91), and the second circulating drive element (93) runs from the drive wheel (91) through the second tensioner (95) to the third valve wheel (8), then to the fourth valve wheel (8) and back to the drive wheel (91), while both circulating drive elements (93) run also through at least one vibration damper (94).
9. Valves according to claims 5 and 6, characterized in that at least one circulating drive element (93) is connected to at least one auxiliary wheel (92).
10. Valves according to claims 5, 6 and 9, characterized in that their drive gear (9) consist of two valve wheels (8) and the drive wheel (91) placed in the middle among them, while the circulating drive element (93) runs from the drive wheel (91) through the tensioner (95) to the first valve wheel (8), then through the auxiliary wheel (92) to the second valve wheel (8) and back to the drive wheel (91), while it runs also through at least one vibration damper (94).